Gas Walk Behind Mower — service parts and specifications. Also written 24738109.
Spark plug — Replace annually or every 100 operating hours. Cross-reference equivalents from other brands usually fit.
Spark plug gap — Set with a feeler gauge before installing. A wrong gap causes hard starting and rough running.
Engine oil — Grade depends on operating temperature, not on the machine. Several grades listed below are all correct — pick by season.
Air filter — Check every 25 hours, more often in dusty conditions. A clogged filter shows up as black smoke and power loss.
| Item | Value | Context | Page |
|---|---|---|---|
| Spark plug | RC12YC | … Oil Type: SAE30 Engine Oil Capacity: 18 ounces Fuel: Unleaded Gasoline Spark Plug: Champion® RC12YC Engine: Briggs& Stratton Model … | 2 |
| Spark plug gap | .020 | … Champion® RC12YCsparkplug. 3. Checkthegapwitha wire gauge. See Figure12. Sparkpluggap shouldbe0.020in (0.51 ram). If necessary, resetthe gap. 4 … | 17 |
| Engine oil | SAE30 | … state. Sears, Roebuck and Co., Noffman Estates, IL 60179 Engine Oil Type: SAE30 Engine Oil Capacity: 18 ounces Fuel: Unleaded Gasoline Spark Plug … | 2 |
| Air filter | 795066 | … 968 796493 Cover-Air Cleaner 404 690272 Washer 972 796489 Tank-Fuel 445 795066 Filter-Air Cleaner Cartridge 975 796611 Bowl-Float 505 793515 Nut … | 32 |
| Air filter | 796254 | … Tube 1023 796479 Cover-Rocker Arm 525 796502 Tube-Dipstick 1026 796481 Rod-Push 535 796254 Filter-Air Cleaner Foam 1029 691230 Arm-Rocker 562 … | 32 |